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Powerhouse Energy Campus

Russell Geisthardt checks out the sundolier during the grand opening of the Powerhouse Energy Campus at Colorado State University Thursday, April 17, 2014. The sundolier uses a rooftop system to concentrate the sun into a natural light source.

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Russell Geisthardt checks out the sundolier during the grand opening of the Powerhouse Energy Campus at Colorado State University Thursday, April 17, 2014. The sundolier uses a rooftop system to concentrate the sun into a natural light source. Erin Hull/The Coloradoan

Zhai Wenjun and Zhang Wen sit in the lobby during the grand opening of the Powerhouse Energy Campus at Colorado State University Thursday, April 17, 2014. The wood used in the lobby came from a tree that was cut down during the expansion. Wenjun and Wen were visiting the site along with colleagues from East China Normal University which has a partnership with CSU. A section of the new building was dedicated to the partnership. Erin Hull/The Coloradoan

The roof portion of the sundolier tracks the sun on the roof of the Powerhouse Energy Campus at Colorado State University Thursday, April 17, 2014. The sundolier uses a rooftop system to concentrate the sun into a natural light source. Erin Hull/The Coloradoan